It appears you have a floor issue causing the tile to buckle. If is is ceramic tile as it seams looking at the picture, you will need to remove your refrigerator and see what is causing your floor to sink in. If it is vinyl tile, a hair dryer will reseat it for now. I have a 2006 Cayman and have the same issue in the bedroom at the hall, but I removed carpet and replace with vinyl tile throughout. Just learned to live with it.